diff --git a/eg001-seal-sign/pom.xml b/eg001-seal-sign/pom.xml
index d04c01d..b142996 100644
--- a/eg001-seal-sign/pom.xml
+++ b/eg001-seal-sign/pom.xml
@@ -134,7 +134,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>28.2-android</version>
+            <version>29.0-android</version>
             <scope>compile</scope>
         </dependency>
         <dependency>